Consolidated Statements Of Stockholders' Equity (USD $)	Common Stock [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Retained Earnings [Member]	Total
BALANCE at Dec. 31, 2010	$ 8,525,725	$ (1,700,173)	$ 45,620,217	$ 52,445,769
BALANCE, Shares at Dec. 31, 2010	5,115,435
Net Income			2,027,523	2,027,523
Dividends			(1,675,310)	(1,675,310)
Unrealized Gain (Loss) of Equity Method Investee		357,316		357,316
Unrealized Gains on Interest Rate Swaps, Net of Deferred Income Taxes		528,623		528,623
BALANCE at Dec. 31, 2011	8,525,725	(814,234)	45,972,430	53,683,921
BALANCE, Shares at Dec. 31, 2011	5,115,435			5,115,435
Net Income			665,318	665,318
Dividends			(422,025)	(422,025)
Unrealized Gain (Loss) of Equity Method Investee		(16,775)		(16,775)
Unrealized Gains on Interest Rate Swaps, Net of Deferred Income Taxes		100,279		100,279
BALANCE at Mar. 31, 2012	$ 8,525,725	$ (730,730)	$ 46,215,723	$ 54,010,718
BALANCE, Shares at Mar. 31, 2012	5,115,435			5,115,435